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/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
package kotlin.js
internal annotation class DoNotIntrinsify
@PublishedApi
@DoNotIntrinsify
internal fun charSequenceGet(a: CharSequence, index: Int): Char {
return if (isString(a)) {
Char(a.asDynamic().charCodeAt(index).unsafeCast<Int>())
} else {
a[index]
}
}
@PublishedApi
@DoNotIntrinsify
internal fun charSequenceLength(a: CharSequence): Int {
return if (isString(a)) {
js("a.length").unsafeCast<Int>()
} else {
a.length
}
}
@PublishedApi
@DoNotIntrinsify
internal fun charSequenceSubSequence(a: CharSequence, startIndex: Int, endIndex: Int): CharSequence {
return if (isString(a)) {
a.asDynamic().substring(startIndex, endIndex).unsafeCast<String>()
} else {
a.subSequence(startIndex, endIndex)
}
}
// Keeping this function as separate non-inline to intrincify `is` operator
internal fun isString(a: CharSequence) = a is String
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